Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atlnacional.com.co
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 01:25:24 UTC · ↺ Refresh
MX Hostnames
- atlnacional.in.tmes.trendmicro.com
MX Priorities
- atlnacional.in.tmes.trendmicro.com: 2
A / AAAA Records
- 172.67.157.86 (no PTR)
- 104.21.8.112 (no PTR)
- 2606:4700:3037::6815:870 (no PTR)
- 2606:4700:3034::ac43:9d56 (no PTR)
Mail Server IPs
- 18.208.22.79 ↩ in.tmes.trendmicro.com
- 18.208.22.78 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
- 18.208.22.80 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
dimitris.ns.cloudflare.com dns.cloudflare.com 2399257240 10000 2400 604800 1800
Primary NS (mname)
dimitris.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399257240
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
princess.ns.cloudflare.com
dimitris.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:mxsspf.sendpulse.com include:spf.mailjet.com include:spf.hostmar.com ip4:200.122.220.193 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.messagelabs.com include:derivacrm.com include:spf-us.tmes.trendmicro.com ip4:138.197.99.250 include:_spf.jupiter.salesmanago.pl -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r; ri=86400; fo=0:1:d:s; rf=afrf; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 include:mxsspf.sendpulse.com include:spf.mailjet.com include:spf.hostmar.com ip4:200.122.220.193 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com include:spf.messagelabs.com include:derivacrm.com include:spf-us.tmes.trendmicro.com ip4:138.197.99.250 include:_spf.jupiter.salesmanago.pl -all
- 6ei4t48g1ol89cdhl11tt87464
- MS=ms86174549
- smv=qz03e770ea90isyi
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for atlnacional.com.co
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits